Remove model OverdueNotification

app/Model/Base.php

@@ -135,23 +135,4 @@ abstract class Base extends \Kanboard\Core\Base
 
         return $start_column.' IS NOT NULL AND '.$start_column.' > 0 AND ('.implode(' OR ', $conditions).')';
     }
-
-    /**
-     * Group a collection of records by a column
-     *
-     * @access public
-     * @param  array   $collection
-     * @param  string  $column
-     * @return array
-     */
-    public function groupByColumn(array $collection, $column)
-    {
-        $result = array();
-
-        foreach ($collection as $item) {
-            $result[$item[$column]][] = $item;
-        }
-
-        return $result;
-    }
 }

app/Model/OverdueNotification.php

@@ -1,58 +0,0 @@
-<?php
-
-namespace Kanboard\Model;
-
-/**
- * Task Overdue Notification model
- *
- * @package  model
- * @author   Frederic Guillot
- */
-class OverdueNotification extends Base
-{
-    /**
-     * Send overdue tasks
-     *
-     * @access public
-     */
-    public function sendOverdueTaskNotifications()
-    {
-        $tasks = $this->taskFinder->getOverdueTasks();
-
-        foreach ($this->groupByColumn($tasks, 'project_id') as $project_id => $project_tasks) {
-            $users = $this->userNotification->getUsersWithNotificationEnabled($project_id);
-
-            foreach ($users as $user) {
-                $this->sendUserOverdueTaskNotifications($user, $project_tasks);
-            }
-        }
-
-        return $tasks;
-    }
-
-    /**
-     * Send overdue tasks for a given user
-     *
-     * @access public
-     * @param  array   $user
-     * @param  array   $tasks
-     */
-    public function sendUserOverdueTaskNotifications(array $user, array $tasks)
-    {
-        $user_tasks = array();
-
-        foreach ($tasks as $task) {
-            if ($this->userNotificationFilter->shouldReceiveNotification($user, array('task' => $task))) {
-                $user_tasks[] = $task;
-            }
-        }
-
-        if (! empty($user_tasks)) {
-            $this->userNotification->sendUserNotification(
-                $user,
-                Task::EVENT_OVERDUE,
-                array('tasks' => $user_tasks, 'project_name' => $tasks[0]['project_name'])
-            );
-        }
-    }
-}